HEAVY INDUSTRIES CO., LTD.
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C O N T E N T S
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Description
Applications
Selection Guide
Arc-Quenching System
Types & Ratings
Construction & Operations
Current Carrying Capacity
Standard Accessories
Service Life
Optional Accessories
Dimensions
Schematic Diagrams
Description
HYUNDAI’s HAF & HVF series vacuum circuit breakers are three-pole units designed for use in medium
voltage indoor switchgears.
The breakers, including vacuum interrupters, are manufactured and fully tested according to IEC standards and
other related standards by HYUNDAI in ISO 9001 certified facilities.
7.2 /12 kV, up to 50 kA, up to 3150 A.
15 kV,
up to 40 kA, up to 3150 A.
24 kV,
up to 40 kA, up to 3150 A.
38 kV,
31.5 kA,
up to 3000 A.
Based on the advanced vacuum principle, the breakers retain high dielectric strength with only a small contact gap and
have a greatly extended service life with maintenance-free features.
Rugged in construction with a minimum of moving
parts, the HYUNDAI HAF & HVF vacuum circuit
breaker operating mechanism features reduced
maintenance requirements, providing a long life
expectancy of 30,000 operations.
Because of the small amount of contact erosion,
contact life is increased to 20,000 operations for the
rated normal current.
Maintenance-free
The circuit breakers require little maintenance.
In fact, only the parts subject to normal wear and
aging must be serviced to ensure fully reliable
operation.
This involves simple jobs carried out by the
customerœ
s personnel with short servicing times and
corresponding downtimes and also long operation
Fig. 1 HAF vacuum circuit breaker (7.2 kV 40 kA 1250 A)
periods between servicing.
Maintenance is confined to lubricating the operating
mechanism.
The vacuum interrupters and their supports need
not be serviced.
No contact degradation
Contact resistance is not effected significantly by
switching operations and remains constant with
the help of applied contact pressure.
Additionally, the contacts cannot be oxidized.
Moisture and contamination residues cannot
form on contacts within the hermetically sealed
vacuum interrupter.
As a result, contacts remain metallically clean,
and dielectric strength at the open contact gap is
kept in good condition.
Fig. 2 HVF vacuum circuit breaker (12 kV 40 kA 1250 A)
Vacuum Circuit Breaker
Greatly extended service lifetime
HAF / HVF 03
Applications
Applicable standards
HYUNDAI HAF & HVF vacuum circuit breakers
fully meet all requirements of IEC publication
60056, and also of BS 5311, VDE 0670, ANSI C37
and ESB 150 for some types.
Rapid load transfer,
synchronizing & operating duty
Switching unloaded transformers
With its consistent short closing and opening times,
the HYUNDAI HAF & HVF series is especially
beneficial in load transfer from one circuit to another
without interruption of service.
This high-speed operation synchronizes the systems
so that they are parallel at the moment of contact
closure.
According to the relevant standards and breaker
types, tests were carried out for the following
operating duties:
CO-15 S-CO
O-3 min-CO-3 min-CO
O-0.3 S-CO-3 min-CO (for auto-reclosing)
Switching of overhead transmission lines
and cables
The relatively small capacitive currents of the
overhead transmission lines and cables under noload are safely interrupted without reignition and
thus without overvoltage development.
Switching of capacitors
Vacuum Circuit Breaker
The vacuum circuit breakers are particularly
suitable for switching capacitive circuits.
They are capable of switching capacitors up to the
highest bank ratings without restrike and thus
without overvoltages occurring.
Capacitive currents of up to 400 A can generally be
interrupted.
04 HAF / HVF
When capacitors are connected in parallel, currents
which have the same level as short-circuit currents
can occur which, due to their high rate of rise, can
cause damage to the system components.
Making currents up to a peak value of 10 kA is
permissible.
By using special contact materials, the chopping
current of the vacuum circuit breakers is only 4 A to 5 A.
This means that no dangerous overvoltages arise
when unloaded transformers are disconnected.
Switching of motors
HYUNDAI HAF & HVF vacuum circuit breakers can
be used economically for controlling motors with
their high number of switching operations at rated
normal currents in conjunction with high-voltage
motors.
If small high-voltage motors are shut down during
start-up, switching surge may occur.
This affects high-voltage motors with a starting
current of up to 600 A.
The level of these overvoltages can be reduced to
safe values by means of surge limiters.
Interruption of short-circuit currents with
very high rate of rise of TRV
The faults immediately behind transformers,
generators, or current-limiting chokes may cause
full short-circuit current development.
The rate of rise of transient recovery voltage is
predictable up to 10 kV/ Ѹ
s or even higher when fault
occurs behind chokes.
This hostile condition also can be easily handled by
the vacuum circuit breakers.
Fig. 3 HAF vacuum circuit breaker
Selection Guide
HAF Type HAFӊ ӊ ӊ ӊ ӊ ‫ڹ‬
Rated
Voltage
(kV)
Rated
Breaking
Current
(kA)
mpulse
Withstand
Voltage
(kV)
4.75
50
60
7.2
Rated Curent (A)
630
1072
1074
1041
1042
1044
31.5
1051
1052
1054
60
40
1162
1172
3150
1077
1166
1167
1174
1177
IEC 60056
1544
31.5
1751
1752
1754
1756
1762
1764
1766
1767
2344
1776
2346
1777
2341
1772
2342
2351
2352
2354
2356
2362
2364
2366
7.5
31.5
95
12.5
16
125
20
25
6111
6121
6112
6122
6131
6132
6141
6142
Previous Type
No.
ANSI C37
IEC 60056
ESB 150
1542
40
Applied
Standard
3AF104
IEC 60056
1056
1541
40
24
1164
2500
25
50
25
15
2000
25
50
12
1250
3AF105
3AF117
3AF154
3AF175
3AF176
IEC 60056
3AF177
3AF234
3AF235
2367
IEC 60056
ANSI C37
3AF236
3AF611
3AF612
IEC 60056
6134
6144
3AF116
3AF613
IEC 60056
ESB 150
6146
3AF614
HVF Type HVFӊ ӊ ӊ ӊ ‫ڹ‬
Rated
Breaking
Current
(kA)
Impulse
Withstand
Voltage
(kV)
25
7.2
31.5
60
Rated Curent (A)
630
1250
2000
1041
1042
1044
1051
1052
1054
1062
1064
2041
2042
2044
2051
2052
2054
2062
2064
2067
2072
2074
2077
40
25
12
75
31.5
40
75 (95 )
50
12.5
24
25
125
31.5
40
38
31.5
40
150
150 (170 )
2500
3150
1067
2056
6011
6012
6041
6042
6044
6052
6054
6062
6064
6067
7052
7054
7057
7062
Applied
Standard
IEC60056
6056
ANSI C37
Type no. suffix in the squareŔӁŕshall be listed as shown in the line of rated current.
Type test report of 3AF type VCB which has been tested with previous type no. is still valid for HAF type.
Impulse withstand voltage inŔŕis available on request.
Vacuum Circuit Breaker
Rated
Voltage
(kV)
HAF / HVF 05
Arc-Quenching System
A
metal-vapor arc discharge in the vacuum is initiated by the current to be
interrupted as the contacts open.
A current flows through this metal-vapor plasma until the next zero
transition.
The arc extinguishes in the vicinity of the current zero and the conductive
metal-vapor condenses within a few microseconds on the metal surfaces.
As a result, the dielectric strength in the contact gap is rapidly rebuilt.
1
2
3
4
1. End flange
The rapid build-up of the dielectric strength at the contact gap enables the arc
to be safely extinguished even if contact separation takes place shortly before
a current zero transition.
The maximum arcing time for the last pole to clear is therefore only up to 15 ms.
2. Ceramic insulator
5
3. Contact base
6
4. Contact
7
5. Bellows
6. Current carrying path
The metal vapor arc discharge can only be maintained if a certain minimum
current flows.
A current that does not attain this level can be chopped prior to current zero.
7. Guide bearing
Fig. 4 Vacuum interrupter
This chopping current must be kept to a minimum in order to prevent build-up
of unduly high overvoltages when inductive circuits are switched.
The use of a special contact material of sintered CrCu ensures that current
chopping is limited to 4-5 A.
The geometry and size of the contact are designed differently according to
breaking current and interrupter type.
Radial magnetic field contact
The arc is constricted when large currents of more than 10 kA are interrupted.
To prevent local overheating of the contacts from the constricted arc, they are
designed so that the arc does not stand still on one point of the contact surface.
The radial magnetic field caused by contact geometry keeps it travelling around
the arcing ring of the contact piece.
Fig. 5 Arc duration of various mediums
Vacuum Circuit Breaker
Axial magnetic field contact
Axial magnetic field causes the arc not to be constricted even at high current
value.
Therefore, the stress on the disc-shaped contact surfaces is uniform and any
melting is avoided.
The arc for all conventional arc-quenching methods must be cooled even
before the contacts have reached the minimum quenching distance and before
the arc energy.
The arc drawn in the vacuum breaker, on the other hand, is not cooled since
the metal vapor plasma is highly conductive and the resulting arc voltage only
attains values between 20 V and 200 V.
Fig. 6 Radial magnetic field contact arc
[Table 1] Arc voltage of various CB types.
For this reason and because of short arcing times, the arc energy developed in
the breaker is very small.
This also accounts for the long electrical life of the vacuum breakers.
06 HAF / HVF
Vacuum - Circuit Breaker:
: 20 ~ 200 V
SF6 - Circuit Breaker
Min. Oil - Circuit Breaker
: 500 ~ 1000 V
: 1500 ~ 3000 V
Air - Circuit Breaker
: 1500 ~ 3000 V
Types & Ratings
Ordering form for HAF Type
Please stipulate the complete ordering form as shown in below table.
Special design, which is not identified in the ordering form, shall be informed in advance.
HAF Ӂ Ӂ Ӂ Ӂ Ӂ
*I[QKWZLMZVW[]NNQ`
*ZMISMZ\aXMVW
Ӂ Ӂ Ӂ Ӂ Ӂ Ӂ Ӂ ƅ ƅ
ɱ ɲ
ɳ
ɴ
ɵ
ɶ
1st order no. suffix (type of mounting).
X
E
F
Fixed breaker
Draw-out breaker with E-type cradle (without shutter and nonmetallic partition)
Draw-out breaker with F-type cradle (with shutter and nonmetallic partition)
2nd order no. suffix (control voltage for motor).
̗ DC24 V ̘ DC48 V ̙ DC60 V ̚ DC110 V ̛ DC125 V ̜ DC220 V ̝ AC110 V ̟ AC220 V
3rd order no. suffix (control voltage for closing solenoid).
̗ DC24 V ̘ DC48 V ̙ DC60 V ̚ DC110 V ̛ DC125 V ̜ DC220 V ̝ AC110 V ̟ AC220 V
4th order no. suffix (control voltage for trip solenoid).
̗ DC24 V ̘ DC48 V ̙ DC60 V ̚ DC110 V ̛ DC125 V ̜ DC220 V ̝ AC110 V ̟ AC220 V
5th order no. suffix (aux. contacts & control jack).
A
B
C
D
X
4NO+4NC & Control Jack mounted on breaker body
7NO+7NC & Control Jack mounted on breaker body
4NO+4NC & Control Jack leaded out from breaker body with lead cable of 0.8 m
10NO+10NC & Control Jack leaded out from breaker body with lead cable of 0.8 m
Without control jack
6th order no. suffix (position switch & others).
0
2
L
0
5
Z
2nd shunt release (Ӂ: order no. for control voltage as shown below)
Under voltage release (Ӂ: order no. for control voltage as shown below)
Lockout relay (Ӂ: order no. for control voltage as shown below)
Varistor module (Ӂ: order no. for varistor)
Cam for position switch
Position switch
Electrical local closing
Cut-out switch
Opening time 50 ms required
Special design or accessories
ż Order no. for control voltage of 6th order no. suffix.
̗ DC 24 V ̘ DC48 V ̙ DC60 V ̚ DC110 V ̛ DC125 V ̜ DC220 V
̝ AC110 V 60 Hz ̟ AC220 V 60 Hz
A AC110 V 50 Hz C AC220 V 50 Hz
ż Detailed outline drawings will be submitted upon request.
Vacuum Circuit Breaker
R
U
L
V
P
P
E
C
T
Z
HAF / HVF 07
Types & Ratings
HAF VCB - 4.76/7.2 kV
Application standard
Type No.
HAF 107Ӂ - 3
HAF 104Ӂ - 4
ANSI C37
Rated voltage (kV)
HAF 105Ӂ - 4
IEC60056
50 / 60
2
1200
1
630
1
630
2 1250/1200
2
1200
4
2000
2
1250
2
1250
4 2000
6
2500
7
3000
4
2000
4
2000
6 2500
7
3150
6
2500
7 3150/3000
Rated short-circuit
breaking current (kA)
50
25
31.5
40
50
Rated short-circuit
making current (kA)
130
65
82
104
130
Short-time withstand
current for 3 sec
50
25
31.5
40
50
Operating duty
CO-15 s-CO
Power-frequency withstand
voltage (kV, 1 min)
19
CO-15 s-CO
O-0.3 s-CO-3 min-CO
20
60
Closing time (ms)
60 (50 )
75 (50 )
Opening time (ms)
50
60 (50 )
Breaking time (cycles)
Closing
Operation
5
System
Motor Spring Stored Energy
Supply voltage(V)
DC 48, 60, 110, 125 / AC 110, 125, 220
Current (A)
Refer to Table 2
Tripping system
Closing &
Tripping Supply voltage (V)
Control
Current (A)
Operating Mechanical operation
life
Electrical operation
(times)
Shunt Trip
DC 48, 60, 110, 125, 220 / AC 110, 125, 220
Refer to Table 2
10,000
30,000
Weight of breaker
(Main body)
10,000
Refer to Table 3
4NO + 4NC (Max. 10NO + 10NC + 1W)
Auxiliary contacts
Vacuum Circuit Breaker
IEC60056
/ESB150
7.2
4.76
Impulse withstand voltage
(kV, 1.2 x 50Ѹs)
08 HAF / HVF
HAF 117Ӂ - 3
IEC60056
Frequency (Hz)
Rated current (A)
HAF 116Ӂ - 3
2
160
1
99
1
100
2
135
2
160
4
160
2
99
2
100
4
135
6
160
7
170
4
115
4
115
6
135
7
160
6
125
7
135
Type number in the squareŔӁŕshall be listed as shown in the line for the rated current.
Closing or Opening Time of 50 ms is available on request.
Types & Ratings
HAF VCB -12 kV
HAF 154Ӂ - 4
HAF 175Ӂ - 4
HAF 176Ӂ - 3
IEC60056
Type No.
Rated voltage (kV)
12
Frequency (Hz)
50 / 60
Rated current (A)
HAF 177Ӂ - 3
1
630
1
630
2
1250
2
1250
2
1250
2
1250
4
2000
6
2500
4
2000
4
2000
6
2500
7
3150
6
2500
7
3150
Rated short-circuit
breaking current (kA)
25
31.5
40
50
Rated short-circuit
making current (kA)
65
82
104
130
Short-time withstand
current for 3 sec
25
31.5
40
50
Operating duty
O-0.3s-CO-3 min-CO
CO-15s-CO
Power-frequency withstand
voltage (kV, 1 min)
28
Impulse withstand voltage
kV, 1.2 x 50Ѹs)
75
Closing time (ms)
75(50 )
Opening time (ms)
60(50 )
Breaking time (cycles)
5
System
Closing
Supply voltage (V)
Operation
Current (A)
Motor Spring Stored Energy
Closing &
Tripping
Control
DC 48, 60, 110, 125, 220 / AC 110, 125, 220
Refer to Table 2
Tripping system
Shunt Trip
Supply voltage (V)
DC 48, 60, 110, 125, 220 / AC 110, 125, 220
Current (A)
Refer to Table 2
Operating Mechanical operation
life
Electrical operation
(times)
Refer to Table 3
Auxiliary contacts
4NO + 4NC (Max. 10NO + 10NC + 1W)
Weight of breaker
(Main-body)
30,000
10,000
1
100
1
108
2
135
2 160
2
100
2
108
4
135
6
160
4
117
4
124
6
135
7
160
6
125
7
135
Type number in the squareŔӁŕshall be listed as shown in the line for the rated current.
Closing or Opening Time of 50 ms is available on request.
Vacuum Circuit Breaker
Application standard
HAF / HVF 09
Types & Ratings
HAF VCB - 15/24/25.8 kV
Type No.
HAF 234Ӂ - 4 HAF 235Ӂ - 4 HAF 236Ӂ - 3 HAF 611Ӂ - 4 HAF 612Ӂ - 4 HAF 613Ӂ - 4 HAF 614Ӂ - 4
Application standard
IEC60056 /
ANSI C 37
IEC60056
Rated voltage (kV)
24 / 25.8
50 / 60
2 1250/1200 1
1
630
1
630
2
1250
2
1250
4 2000
4
2000
4
2000
6 2500
6
2500
6
2500
7 3150/3000
630
2 1250
1
630
2 1250
1
630
1
630/600
2 1250
2 1250/1200
4 2000
4 2000
6 2500
25
31.5
40
12.5
16
20
25
Rated short-circuit
making current (kA)
65
82
104
32.5
41.6
52
65
Short-time withstand
current for 3 sec
25
31.5
40
12.5
16
20
25
O-0.3 s-CO-3 min-CO
CO-15 s-CO
O-0.3 s-CO-3 min-CO
Power-frequency withstand
voltage (kV, 1 min)
36
50
Impulse withstand voltage
(kV, 1.2 x 50Ѹs)
95
125
Closing time (ms)
75(50 )
Opening time (ms)
60(50 )
Breaking time (cycles)
5
System
Closing
Supply voltage (V)
Operation
Current (A)
Motor Spring Stored Energy
Closing &
Tripping
Control
Vacuum Circuit Breaker
24
Rated short-circuit
breaking current (kA)
Operating duty
10 HAF / HVF
IEC60056
/ ESB150
15
Frequency (Hz)
Rated current (A)
IEC60056
DC 24, 48, 60, 110, 125, 220 / AC 110, 125, 220
Refer to Table 2
Tripping system
Shunt Trip
Supply voltage (V)
DC 24, 48, 60, 110, 125, 220 / AC 110, 125, 220
Current (A)
Refer to Table 2
Operating Mechanical operation
life
(times) Electrical operation
Refer to Table 3
Auxiliary contacts
4NO + 4NC (Max. 10NO + 10NC + 1W)
Weight of breaker
(Main body)
30,000
1
109
1
112
2
139
1
100
1
100
1
100
1
115
2
109
2
112
4
139
2
100
2
100
2
100
2
115
4
125
4
128
6
139
4
128
4
131
6
126
6
129
7
139
6
134
Type number in the squareŔӁŕ
shall be listed as shown in the line for the rated current.
Closing or Opening Time of 50 ms is available on request.
Types & Ratings
Ordering form for HVF Type
Please stipulate the complete ordering form as shown in below table.
Special design, which is not identified in the ordering form, shall be informed in advance.
HVF Ӂ Ӂ Ӂ Ӂ Ӂ Ӂ Ӂ Ӂ Ӂ Ӂ Ӂ Ӂ ƅ ƅ
*I[QKWZLMZVW[]NNQ`
*ZMISMZ\aXMVW
ɱ
ɲ ɳ
ɴ
ɵ
ɶ
1st order no. suffix (type of mounting).
X
E
F
H
G
A
S
S
S
S
Fixed breaker
Draw-out breaker with E-type cradle (without shutter and nonmetallic partition)
Draw-out breaker with F-type cradle (with shutter and nonmetallic partition)
Draw-out breaker with H-type cradle (without shutter and metallic partition, bushing type)
Draw-out breaker with G-type cradle (with shutter and metallic partition, bushing type)
2nd order no. suffix (control voltage for motor).
̗ DC24 V ̘ DC48 V ̙ DC60 V ̚ DC110 V ̛ DC125 V ̜ DC220 V ̝ AC110 V ̟ AC220 V
3rd order no. suffix (control voltage for closing solenoid).
̗ DC24 V ̘ DC48 V ̙ DC60 V ̚ DC110 V ̛ DC125 V ̜ DC220 V ̝ AC110 V ̟ AC220 V
4th order no. suffix (control voltage for trip solenoid).
̗ DC24 V ̘ DC48 V ̙ DC60 V ̚ DC110 V ̛ DC125 V ̜ DC220 V ̝ AC110 V ̟ AC220 V
5th order no. suffix (aux. contacts & control jack).
A
B
C
D
X
4NO+4NC & Control Jack mounted on breaker body
7NO+7NC & Control Jack mounted on breaker body
4NO+4NC & Control Jack leaded out from breaker body with lead cable of 0.8 m
10NO+10NC & Control Jack leaded out from breaker body with lead cable of 0.8 m
Without Control Jack
6th order no. suffix (position switch & others).
0
2
L
0
5
Z
2nd shunt release (Ӂ: order no. for control voltage as shown below)
Under voltage release (Ӂ: order no. for control voltage as shown below)
Lockout relay (Ӂ: order no. for control voltage as shown below)
Varistor module (Ӂ: order no. for varistor)
Cam for position switch
Position switch
Electrical local closing
Cut-out switch
Opening time 50 ms required
Special design or accessories
ż Order no. for control voltage of 6th order no. suffix.
̗ DC 24 V ̘ DC48 V ̙ DC60 V ̚ DC110 V ̛ DC125 V ̜ DC220 V
̝ AC110 V 60 Hz ̟ AC220 V 60 Hz
A AC110 V 50 Hz C AC220 V 50 Hz
ż Detailed outline drawings will be submitted upon request.
Vacuum Circuit Breaker
R
U
L
V
P
P
E
C
T
Z
HAF / HVF 11
Types & Ratings
HVF VCB - 7.2 kV
Type No.
HVF 104Ӂ
Application standard
IEC60056
Rated voltage (kV)
7.2
Frequency (Hz)
50 / 60
Rated current (A)
630
1
630
2
1250
2
1250
2
1250
4
2000
4
2000
4
2000
7
3150
Rated short-circuit
breaking current (kA)
25
31.5
40
Rated short-circuit
making current (kA)
65
82
104
Short-time withstand
current for 3 sec
25
31.5
40
O-0.3 s-CO-3 min-CO
CO-15 s-CO
Power-frequency withstand
voltage (kV, 1 min)
20
withstand voltage
(kV, 1.2 x 50Ѹs)
60
Closing time (ms)
75(50 )
Opening time (ms)
60(50 )
Breaking time (cycles)
5
System
Closing
Supply voltage (V)
Operation
Current (A)
Motor Spring Stored Energy
DC 24, 48, 60, 110, 125, 220 / AC 110, 125, 220
Refer to Table 2
Shunt Trip
Tripping system
Closing &
Tripping Supply voltage (V)
Control
Current (A)
Vacuum Circuit Breaker
HVF 106Ӂ
1
Operating duty
12 HAF / HVF
HVF 105Ӂ
DC 24, 48, 60, 110, 125, 220 / AC 110, 125, 220
Refer to Table 2
Operating Mechanical operation
life
Electrical operation
(times)
Refer to Table 4
Auxiliary contacts
4NO + 4NC (Max. 10NO + 10NC + 1W)
Weight of breaker
(Draw-out type without cradle)
30,000
1
150
1
150
2
165
2
160
2
160
4
180
4
180
4
180
7
200
Type number in the squareŔӁŕshall be listed as shown in the line for the rated current.
Closing or Opening Time of 50ms is available on request.
Types & Ratings
HVF VCB - 12 kV
HVF 204Ӂ
HVF 205Ӂ
(HVF 2152)
HVF 206Ӂ
(HVF 2162)
Application standard
IEC60056
Rated voltage (kV)
12
Frequency (Hz)
50 / 60
Rated current (A)
1
630
2
1250
4
2000
1
2
4
6
630
1250
2000
2500
HVF 207Ӂ
2
1250
2
1250
4
2000
4
2000
7
3150
7
3150
Rated short-circuit
breaking current (kA)
25
31.5
40
50
Rated short-circuit
making current (kA)
65
82
104
130
Short-time withstand
current for 3 sec
25
31.5
40
50
O-0.3 s-CO-3 min-CO
Operating duty
CO-15 s-CO
Power-frequency withstand
voltage (kV, 1 min)
28
Impulse withstand voltage
(kV, 1.2 x 50Ѹs)
75
75(95 )
75(95 )
Closing time (ms)
75(50 )
Opening time (ms)
60(50 )
Breaking time (cycles)
5
System
Closing
Supply voltage (V)
Operation
Current (A)
Motor Spring Stored Energy
DC 24, 48, 60, 110, 125, 220 / AC 110, 125, 220
Refer to Table 2
Shunt Trip
Tripping system
Closing &
Tripping Supply voltage (V)
Control
Current (A)
DC 24, 48, 60, 110, 125, 220 / AC 110, 125, 220
Refer to Table 2
Operating Mechanical operation
life
Electrical operation
(times)
30,000
10,000
Refer to Table 4
4NO + 4NC (Max. 10NO + 10NC + 1W)
Auxiliary contacts
Weight of breaker
(Draw-out type without cradle)
75(95 )
1
150
2
160
4
180
1
2
4
6
165
165
190
200
Type number in the squareŔӁŕshall be listed as shown in the line for the rated current.
This is the type no. for narrow-size VCB.
Impulse withstand voltage of 95 kV is available on request.
Closing or Opening Time of 50 ms is available on request.
2
165
2
165
4
190
4
190
7
240
7
240
Vacuum Circuit Breaker
Type No.
HAF / HVF 13
Types & Ratings
HVF VCB - 24 kV / 38 kV
Type No.
HVF 601Ӂ
HVF 604Ӂ
HVF 605Ӂ
HVF 706Ӂ
IEC60056
ANSI C37
Rated voltage (kV)
24
38
Rated current (A)
50 / 60
1
630
1
630
2
1250
2
1250
2
1200
2
1250
2
1250
4
2000
4
2000
4
2000
4
2000
6
2500
7
3150
7
3000
2
1200
Rated short-circuit
breaking current (kA)
12.5
25
31.5
40
31.5
40
Rated short-circuit
making current (kA)
31.5
65
82
104
82
104
Short-time withstand
current for 3 sec
12.5
25
31.5
40
31.5
40
Operating duty
O-0.3 s-CO-3 min-CO
Power-frequency withstand
voltage (kV, 1 min)
50
60
80
Impulse withstand voltage
(kV, 1.2 x 50Ѹs)
125
150
150(170 )
Closing time (ms)
75(50 )
75(50 )
Opening time (ms)
60(50 )
50
Breaking time (cycles)
5
4
System
Closing
Supply voltage (V)
Operation
Current (A)
Motor Spring Stored Energy
DC 24, 48, 60, 110, 125, 220 / AC 110, 125, 220
Refer to Table 2
Tripping system
Closing &
Tripping Supply voltage (V)
Control
Current (A)
Shunt Trip
DC 24, 48, 60, 110, 125, 220 / AC 110, 125, 220
Refer to Table 2
Operating Mechanical operation
life
Electrical operation
(times)
30,000
Weight of breaker
(Draw-out type without cradle)
20,000
Refer to Table 4
Auxiliary contacts
Vacuum Circuit Breaker
HVF 705Ӂ
Application standard
Frequency (Hz)
14 HAF / HVF
HVF 606Ӂ
(High insulation)
4NO + 4NC (Max. 10NO + 10NC + 1W)
1
630
1
170
2
170
2
340
2
340
2
165
2
170
4
190
4
365
4
365
4
190
6
270
7
400
7
400
Type number in the squareŔӁŕ
shall be listed as shown in the line for the rated current.
Impulse withstand voltage of 170 kV is available on request.
Closing or Opening Time of 50 ms is available on request.
2
340
Construction & Operations
The HYUNDAI HAF & HVF vacuum circuit breaker’s superiority lies in its compact size, weight, and
quiet low-vibrating operation, along with its reliability and maintenance-free service.
Break poles
As shown in Fig. 7 and Fig. 8, the pole parts are
mounted on the rear of the mechanism housing by
post insulators in the HAF type, and by insulation
frames in the HVF type with air-insulated
assemblies.
Some HAF models are fitted with phase-barriers
depending on dielectric requirements.
Operating mechanism
HAF & HVF circuit breakers have motor-spring
stored energy mechanisms of the same design.
They consist of the spring-charging mechanism,
closing and trip spring, motor, solenoids, auxiliary
switches, spring-charged signal, and on/off indicator,
as in the standard version.
Depending on the intended switch functions, the
operating mechanism can be supplemented by two
releases: a lockout, a cut-out switch, a limit switch
41: Vacuum Interrupter
43: Upper Pole Support
44: Lower Pole Support
46: Upper Insulator
48: Insulated Coupler
51: Strut
for closing the spring-charged signal, electrical local
closing, and longer auxiliary switch.
The released closing spring is automatically
recharged by the motor and capable of the
switching sequencesŔopen-close-openŕ, which is
required when unsuccessful auto-reclosing
operation is attempted.
The vacuum interrupter is mounted rigidly in the
insulation frame and supports so that it can
withstand forces arising from switching operation
and contact pressure.
When closed, the necessary contact pressure is
established by the contact pressure spring and the
atmospheric pressure.
The contact pressure spring automatically
compensates for the arc erosion, which is very
small.
41: Vacuum Interrupter
42 : Upper Contact
45 : Flexible Terminal
45.3: Lower Terminal
49: Spring Cap
57: Lower Support
Fig. 8 Pole parts of HVF vacuum circuit breaker.
10: Housing Box
11: Gear Box
12: Closing Spring
13: Trip Spring
14: Link
15: Closing Bar
16: Breaker Shaft
17: Dash Pot
18: Counter
19: On / Off Indicator
20: Spring Charged Indicator
21: Closing Button
22: Trip Button
23: Name Plate
24: Manual Charging Operation Hole
31: Motor
32: Closing Solenoid
33: Trip Solenoid
34: Limit Switch
35: Anti-Pumping Contactor
36: Auxiliary Switch
!
Fig. 9 Operating mechanism for
HAF & HVF vacuum circuit breaker.
Vacuum Circuit Breaker
Fig. 7 Pole parts of HAF vacuum circuit breaker
HAF / HVF 15
Construction & Operations
Type of mounting
In the standard version, fixed type and several kinds
of draw-out type breakers are available.
The standard version of draw-out type breakers is
equipped with the drawable truck, mechanical
interlock and main-circuit disconnecting unit.
In addition, three kinds of draw-out units can be
supplied for the mounting of the breaker in the
switchgear:
Ւ E-type: without shutter and nonmetallic partition.
Ւ F-type: with shutter and nonmetallic partition.
Ւ H-type: without shutter and metallic partition.
(bushing type)
Ւ G-type: with shutter and metallic partition.
(bushing type)
Motor drive
The motor used for charging the closing spring
operates in short-time duty.
The current consumption, as shown in table 2, is
the maximum value during operation.
The inrush current may be disregarded since it lasts
for only a very brief period.
Fig.10 HVF VCB with G type draw-out unit.
Auxiliary contacts & connector for
secondary connection
The following versions are available:
Ւ 4NO+4NC & wired connector which is mounted
on breaker body (A type).
Ւ 4NO+4NC & wired connector which is leaded out
from breaker body with lead cable of 0.8 m (C type).
Ւ 7NO+7NC & wired connector which is mounted
on breaker body (B type).
Ւ 10NO+10NC & which is leaded out from breaker body
Solenoids
with lead cable of 0.8m (D type).
Solenoids transfer the commands which are
inputted remotely to the circuit breaker latching
mechanism, and thus close or open the device.
Ւ Auto Jack (X type).
Rating of auxiliary contacts
Ւ Operating voltage: Max. 250 V AC, DC
The closing solenoid unlatches the charged closing
spring, and thus closes the circuit breaker electronically.
The opening solenoid (shunt release) unlatches the
opening and contact pressure springs, and thus
opens the breaker.
The current consumption, as shown in the Table 2,
is the maximum value during operation.
Ւ Continuous thermal current: 10 A
Ւ Making current: 30 A
Ւ Switching capacity: 2A at DC220 V, T=20 ms
[Table 2] Current consumption & operating voltage of the motor & solenoids.
Vacuum Circuit Breaker
Rated
voltage
16 HAF / HVF
Current consumption (A)
Motor
Closing solenoid
Trip solenoid
DC 24
21
4
4
DC 48
10.5
2.7
2.7
DC 60
8
1.7
1.7
DC 110
4.5
1.3
1.3(2.0 )
DC 125
4.5
1.5
1.5(2.0 )
DC 220
2.3
0.65
0.65
AC 110
6.4
1.3
1.3
AC 220
3.2
0.65
0.65
When adopted trip time 50 ms solenoid
Operating voltage
For motor: 85~110ʽ of rated voltage
For closing control: 85~110ʽ of rated voltage
For trip control: 70~110ʽ of DC rated voltage
For trip control: 85~110ʽ of AC rated voltage
Current Carrying Capacity
H
YUNDAI vacuum circuit breakers may be
operated at ambient temperatures between -25
ŭ and +40ŭ.
3150A
The rated normal currents listed in Table 4 were
determined according to IEC standards at an
ambient temperature of 40ŭ.
2500A
2000A
If the breaker is operated at a different
temperature, a correction of the operating current
must be considered.
1600A
1250A
Fig.13 shows appropriate operating currents at
different ambient temperatures.
630A
The diagram, however, is applied only to open-type
switchgears.
Thus, when a metal enclosed switchgear is used,
load currents must be reduced accordingly.
Fig. 13 Vacuum circuit breaker, load characteristics.
Operating handle for HAF & HVF type
Draw-out handle for HVF(GS, HS) type
Draw-out handle for HVF(ES, FS) type
Vacuum Circuit Breaker
Standard Accessories
HAF / HVF 17
Service Life
H
YUNDAI vacuum circuit breaker needs minimum maintenance due to the simple operating mechanism
and robust construction.
Vacuum Circuit Breaker shall be maintained periodically to ensure the perfect performance during mechanical
and/or electrical lifetime. Please refer to the Instruction Manual for the detailed information.
Fig. 11-2
Fig. 11-1
Fig. 11 Permissible operating numbers as a function of breaking current
Vacuum Circuit Breaker
[Table 3] Determination of load characteristic numbers for HAF vacuum circuit breakers.
18 HAF / HVF
Rated
voltage
kV
Rated
short-circuit
breaking
current
kA
Curve
number
4.76, 7.2
25
31.5
12
40
50
25
31.5
15
40
50
6
630 A
1
2
1
3
1250 A
1
2
4
6
1
3
7
2000 A
1
2
4
6
1
3
7
3
4
6
3
7
6
5
6
7
6
2500 A
3150 A
25
31.5
1
3
1
1
24
40
12.5
3
7
3
7
3
7
7
16
20
25
8
9
10
11
8
9
10
11
10
11
11
Service Life
Fig. 11-4
Fig. 11-3
Fig. 11 Permissible operating numbers as a function of breaking current
[Table 4] Determination of load characteristics numbers for HVF vacuum circuit breakers.
kV
Rated short-circuit
breaking current
kA
25
31.5
630 A
1
2
1250 A
1
2
2000 A
1
2
Curve number
12
24
38
25
31.5
1
14
7
1
14
5
6
7
1
14
5
6
13
14
40
40
50
2500 A
7
5
6
3150 A
7
5
6
12.5
25
12
13
12
31.5
31.5
40
13
14
14
14
13
14
14
14
14
Vacuum Circuit Breaker
7.2
Rated voltage
HAF / HVF 19
Optional Accessories
2nd shunt release with attachment
2nd shunt releases are used to open the circuit
breaker automatically with appropriate protective
relays or by deliberate electrical or mechanical action.
They are designed for connection to external
voltage (AC or DC); however, in special cases they
may also be connected to voltage transformers.
Undervoltage release with attachment
Undervoltage releases are used to open the circuit
breakers automatically in the event that the
operating voltage drops below a specified level.
They can be connected to voltage transformers, but
they are also available for DC operation.
The deliberate tripping of the undervoltage release
is accomplished by means of an opening contact in
the control circuit.
If the coil is de-energized by short-circuiting, built-in
resistors limit the short-circuit current.
Varistor module
When the motor, solenoid, and shunt releases are
switched in DC circuits, it is possible for surges to
be produced which might cause great damage to
solid-state devices.
By additionally connecting the varistor module to
the motor and solenoid, the damage can be
effectively eliminated.
Capacitor trip unit
Vacuum Circuit Breaker
It is recommended that the capacitor trip unit be
employed for a trip operation of the breaker when
the control source is lost in the AC control system.
20 HAF / HVF
Order no.
HVFS-T7
HVFS-T9
Rated input voltage
AC 110 V
AC 220 V
Charging voltage
DC 145 V
DC 290 V
Electrical lockout with attachment
The lockout relay is an electromagnetic device
actuated by DC or AC voltage for the voltageindependent interlocking of switching devices.
It enables the operation of circuit breakers at a
voltage of ŧ 85% of the rated voltage, and lock
operation at a voltage of Ŧ 60% of the rated
voltage.
The lockout relay actuates the closing solenoid or
the ON button mechanically.
A lockout relay is used in circuit breakers with
indirect releases.
As a result, the breaker can be closed by release of
the lockout only when the undervoltage release is
energized, ensuring proper closing operation.
Unsuccessful attempts at closing are prevented if
the auxiliary voltage has failed fully or partially.
Since the undervoltage release does not latch if the
auxiliary voltage is insufficient or has failed, a circuit
breaker not equipped with a lockout relay would
close and immediately reopen unnecessarily.
Vacuum checker
The portable vacuum checker can be used for
checking the vacuum degree.
Order no.
HAFS-VC9
Rated input voltage
AC 220 V
Rated output voltage
AC 11 kV / 22 kV
Dimensions
W200ţL350ţH176
Weight
22 kg
Dimensions
HAF / Fixed Type VCB
Dimensions in mm
25
7.2
31.5
40
7.2/12
50
25
12
31.5
25
15
31.5
40
24
Ŧ25
Rated
normal
current
(A)
Dimensions
A
B
C
D
E
630/1250
323 534 324
2000
313 524 284
630/1250
323 534 324
2000
313 524 284
2500
270
1250
350 561
2000/2500/3150
844 550
302
1250
356 567
2500/3150
630/1250
360 571 310
2000
350 561
630/1250
360 571
270
2000
350 561
2500
630/1250
360 571 433
2000/2500
350 561
630/1250
360 571 393
2000/2500
966 600
1250
350 560
423
2000/2500/3150
630/1250
439
392 603
2000/2500
399
NOTE: This drawing can be revised without notice.
F
Main circuit terminal
G
H
I
453
493
453
493
519
Without
phase
barrier
479
519
479
519
318 715 615
535
288 800 760
575
Terminal
type
A
C
A
C
C
B
C
B
C
A
C
A
C
C
A
C
A
C
B
C
A
C
B type
A type
C type
Vacuum Circuit Breaker
Rated
Rated
breaking
voltage
current
(kV)
(kA)
HAF / HVF 21
Dimensions
HAF / 7.2 kV Draw-Out Type VCB with E&F Cradle
Dimensions in mm
Rated
voltage
(kV)
Rated
breaking
current
(kA)
Rated
normal
current
(A)
25
1250
630
2000
Vacuum Circuit Breaker
7.2
31.5
40
50
630/1250/2000
A
B
432
1250/2500
a
60
Terminal
type
A
260
427
80
15
377 360
3150
NOTE: This drawing can be revised without notice.
22 HAF / HVF
C
10
1250/2000/2500
3150
Main circuit terminal
Dimensions
120
80
120
B
A type
B type
Dimensions
HAF / 12 kV Draw-Out Type VCB with E&F Cradle
Dimensions in mm
Rated
breaking
current
(kA)
25
Dimensions
Rated
normal
current
(A)
630/1250
A
B
382
C
31.5
Terminal
type
A type
B type
A
99
80
2000
2500
377
360
15 139 100
1250/2000
40/50
a
10
2000
630/1250
12
D
Main circuit terminal
2500
3150
NOTE: This drawing can be revised without notice.
2000 A is available at 40 kA breaker.
99
139
80
100
120
B
Vacuum Circuit Breaker
Rated
voltage
(kV)
HAF / HVF 23
Dimensions
HAF / 15 kV Draw-Out Type VCB with E&F Cradle
Dimensions in mm
Rated
voltage
(kV)
Rated
breaking
current
(kA)
25
Vacuum Circuit Breaker
15
31.5
40
A
630/1250
369
B
2500
464
394
NOTE: This drawing can be revised without notice.
24 HAF / HVF
a
Terminal
type
A type
A
80
630/1250/2000 364
2500
C
10
2000
1250/2000
Main circuit terminal
Dimensions
Rated
normal
current
(A)
15 100
80
100
B
B type
Dimensions
HAF / 24 kV Draw-Out Type VCB with E&F Cradle
Dimensions in mm
Rated
voltage
(kV)
Rated
breaking
current
(kA)
Main circuit terminal
Dimensions
Rated
current
(A)
A
C
D
a
Terminal
type
A type
B type
630
12.5/16
380 10
60
1250
A
175
24
630/1250
80
2000
377 15
B
2500
NOTE: This drawing can be revised without notice.
275 100
Vacuum Circuit Breaker
20/25
HAF / HVF 25
Dimensions
HVF / 7.2 kV Draw-Out Type VCB with E&F Cradle
Dimensions in mm
Dimensions (mm)
TYPE
W
L
H
HVF 1041
A
B
C
D
E
F
G
Terminal
type
10
A
HVF 1042
650
165 296 630 514
780
292
HVF 1051 / 1052 / 1162
B
850 930
15
HVF 1044 / 1054
Vacuum Circuit Breaker
HVF 1062
C
210 346 730 610
750
305
HVF 1064
NOTE: This drawing can be revised without notice.
26 HAF / HVF
B
845
C
Main terminal
A type
B type
C type
Dimensions
HVF / 24 kV Draw-Out Type VCB with E&F Cradle
Dimensions in mm
K
Dimensions (mm)
TYPE
W
L
H
HVF 6011 / 6041
A
Terminal
type
C
D
E
K
210
419
880
650
A
250
459
960
730
B
Main terminal
A type
B type
10
900
HVF 6012 / 6042
15
HVF 6044
980
15
NOTE: This drawing can be revised without notice.
Vacuum Circuit Breaker
1000 1122
HAF / HVF 27
Dimensions
HVF / 7.2~12 kV Draw-Out Type VCB with G Cradle
Dimensions in mm
Dimensions (mm)
TYPE
W
L
H
HVF 1041 / 2041
A
Terminal
type
10
A
HVF 1042 / 2042
650
774
962
15
Vacuum Circuit Breaker
HVF 1051 / 1052
NOTE: This drawing can be revised without notice.
28 HAF / HVF
B
Main terminal
A type
B type
Dimensions
HVF / 7.2~12 kV Draw-Out Type VCB with G Cradle
Dimensions in mm
Dimensions (mm)
TYPE
W
L
H
A
HVF 1044 / 1054 / 2044
HVF 1062 / 2051 / 2052 / 2062 / 2072
B
G
292 780
750 730 962
Terminal
type
Main terminal
A type
B type
B
A
15
305 845
NOTE: This drawing can be revised without notice.
B
Vacuum Circuit Breaker
HVF 1064 / 2054 / 2064 / 2074
HAF / HVF 29
Dimensions
HVF / 7.2~12 kV Draw-Out Type VCB with G Cradle
Dimensions in mm
Dimensions (mm)
TYPE
HVF 1067
Vacuum Circuit Breaker
HVF 2056 / 2067/ 2077
NOTE: This drawing can be revised without notice.
30 HAF / HVF
Main terminal
W
L
H
850
730
962
Dimensions
HVF / 24 kV Draw-Out Type VCB with G Cradle
Dimensions in mm
Dimensions (mm)
Terminal
TYPE
W
L
H
HVF 6011 / 6041
A
TYPE
Main terminal
A TYPE
B TYPE
10
A
HVF 6012 / 6042
808
850
1132
15
NOTE: This drawing can be revised without notice.
B
Vacuum Circuit Breaker
HVF 6052
HAF / HVF 31
Dimensions
HVF / 24 kV Draw-Out Type VCB with G Cradle
Dimensions in mm
Dimensions (mm)
TYPE
W
L
H
HVF 6044 / 6054
890
850
Vacuum Circuit Breaker
730
A
770
B
1132
HVF 6056
NOTE: This drawing can be revised without notice.
32 HAF / HVF
J
Terminal
type
Main terminal
A type
B type
Dimensions
HVF / 24~38 kV Fixed Type VCB
Dimensions in mm
Dimensions (mm)
TYPE
W
L
H
HVF 6062 / 7052
A
Terminal
type
Main terminal
A type
B type
15
A
792
670
1263
HVF 6067 / 7057
NOTE: This drawing can be revised without notice.
20
30
B
Vacuum Circuit Breaker
HVF 6064 / 7054
HAF / HVF 33
Dimensions
HVF / 24~38 kV Draw-Out Type VCB with G Cradle
Dimensions in mm
MAIN CIRCUIT TERMINAL (A)
VCB TYPE NO.
HVF 6062 / 7052
HVF 6064 / 7054
HVF 6067 / 7057
T=15
T=20
ঈ95
DETAIL (A)
Vacuum Circuit Breaker
THICKNESS
NOTE: This drawing can be revised without notice.
34 HAF / HVF
Schematic Diagrams
Dimensions in mm
M1: Motor operating mechanism
F1: Lockout
K1: Anti-pumping contactor
R1: Resistor
X0: Plug connector
Y1: Shunt release
Y7: Undervoltage release
Y9: Closing solenoid
S1: Auxiliary switch
S3: Limit switch (K1 control)
S6, S7: Cutout switches
S21, S22: Limit switches (interrupt motor circuit after spring charged)
S41, S42: Position switch (spring charged status signal)
NOTE: 1. Extended circuit spec & connection line number are defined by user’s request.
2. For the AC control circuit, the rectifier should be attached on the standard circuit.
CONTROL JACK APPLICATION
Draw-out type control jack (C & D type)
Vacuum Circuit Breaker
Fixed type control jack (A & B type)
HAF / HVF 35